let div1 =document.getElementById("div1")
let div2 =document.getElementById("div2")
let div3 =document.getElementById("div3")

div1.addEventListener("click",function(e){
    console.log(e.target);
    console.log("div1 click事件响应")
})

div2.addEventListener("click",function(e){
    console.log(e.target);
    console.log("div2 click事件响应")
})

div3.addEventListener("click",function(e){
    console.log(e.target);
    console.log("div3 click事件响应")
})

document.addEventListener("click",function(e){
    console.log(e.target);
    console.log("document click事件响应")
})

window.addEventListener("click",function(e){
    console.log(e.target);
    console.log("window click事件响应")
})